I own a 2000 GMC crew cab w/ the 7.4 bigblock, fairly recently it has become a little hard to start. Instead of starting the moment I turn the key I have to crank it for a second or two. It used to fire right up weather it was cold or hot, the rpms would go up to about 1500 ( I was told that that's when the computer is checking everything) then idle back down to about 650. Now, after cranking for a bit it sort of sputters and rolls into the 650 idle. Other than that it runs perfect. Any Ideas?
Thanks 75woody